Stylus cartridge having stylus arm restraint

Abstract

The stylus arm restraint comprises an element disposed substantially perpendicular to the stylus arm, and having a portion that is received in a recess provided in the cartridge housing when the stylus arm is held inside the cartridge. The reception of the stylus arm-mounted element in the cartridge recess limits motion of the stylus arm during transit.

What is claimed is: 
     
       1. In a stylus cartridge including a housing; a stylus arm having an axis and carrying a stylus at one end thereof; a compliant member freely suspending the other end of said stylus arm in said cartridge housing such that said stylus arm is free to move axially, laterally and vertically; a stop having a centering groove arranged substantially parallel to said stylus arm axis; means for biasing said stylus arm in said centering groove to prevent side-to-side and up-and-down motion of said stylus arm; wherein the improvement comprises: (A) an element disposed on said stylus arm substantially at right angles to its axis; and   (B) a recess provided in said cartridge housing for receiving a portion of said element when said stylus arm is held against said stop to limit front-to-back excursions of said stylus arm.   
     
     
       2. The stylus cartridge as set forth in claim 1 further including a flylead having one end secured to said cartridge housing and the other end to said stylus. 
     
     
       3. The stylus cartridge as defined in claim 1 for use with a player having a stylus skipper mechanism comprising a magnetic element attached to said stylus arm and an electromagnet arranged in said player adjacent to said magnetic element; said electromagnet causing lateral displacement of said stylus arm when energized; the magnitude of said stylus displacement depending upon the amplitude of the electrical pulse applied to said electromagnet; the direction of said stylus displacement being the function of the polarity of said pulse; said magnetic element of said skipper mechanism additionally serving as said stylus arm-mounted element having a portion extending into said recess in said cartridge housing for limiting the axial travel of said stylus arm.